Numerical Analyses of All-Optical Retiming Switches Using Cascade of Second Harmonic Generation and Difference Frequency Mixing in Periodically Poled Lithium Niobate Waveguides

  • FUKUCHI Yutaka
    Department of Electrical Engineering, Faculty of Engineering, Tokyo University of Science
  • HIRATA Kouji
    Department of Electrical and Electronic Engineering, Faculty of Engineering Science, Kansai University
  • MAEDA Joji
    Department of Electrical Engineering, Faculty of Science and Technology, Tokyo University of Science

Abstract

In all-optical switches using the cascade of second harmonic generation and difference frequency mixing in periodically poled lithium niobate (PPLN) waveguide devices, walk-off between the fundamental and second harmonic pulses causes crosstalk between neighboring symbols, and limits the switching performance. In this paper, we numerically study retiming characteristics of all-optical switches that employ the PPLN waveguide devices with consideration for the effects of the crosstalk and for the input timing of the data and clock pulses. We find that the time offset between the data and clock pulses can control the timing jitter of the switched output; an appropriate offset can reduce the jitter while improving the switching efficiency.

Journal

  • IEICE Transactions on Electronics

    IEICE Transactions on Electronics E98.C (12), 1143-1149, 2015

    The Institute of Electronics, Information and Communication Engineers

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